I've taken a list of English words, and examined each of them to see what they sound like (using the PHP metaphone function). This page lists the most common metaphone codes, along with their words. You can also search for a word of your own, and see which words sound similar - and which ones rhyme, and which ones alliterate.
tarried tarred tried tared torrid teared trued treed dared tardo tyred trite triad tardy tired dried toured tiered terret turret teredo territ toroid triode deaired trod turd tart trad tret dreed droid trode torte trait tarty trade druid tarot tread dured deride hydrid terete tirade diorite hydride hydroid
berried tarried hurried worried serried quarried parried curried ferried herried carried harried wherried married whirried tried dried horrid ferrite aeried birred gnarred furred chirred juried jerreed cried pried varied warred parred tarred wearied shirred whirred barred queried fried jarred wried curred buried corrida caried purred bourride charred torrid erred jerrid rared garred marred knarred churred burred yirred red rid